Saros 20 Sonic

Beyond Detail. Beyond Clean.

Driven by next-generation vibrating mopping, Saros 20 Sonic delivers deep, precise cleaning while keeping floors streak-minimized. It glides effortlessly over high thresholds and plush carpets, and with every wash, the upgraded RockDock restores your mop to peak performance—keeping your home effortlessly immaculate.

VibraRise 5.0 Mopping System

Vibrate, Extend, Perfect.

Powerful Suction, Tangle-Free Performance

35,000¹ Pa HyperForce Motor & Dual Anti-Tangle System

AdaptiLift Chassis 3.0

Conquers High Thresholds² and Effortlessly Tackles Thick Carpets³.

7.98 cm Ultra-Slim Design

Slides Effortlessly Under furniture to Reach Every Low Space.

Brand New RockDock

Smart, High-temperature Refreshing for Spotless Performance.

VibraRise 5.0 Mopping System

Vibrate, Extend, Perfect.

Powerful Suction, Tangle-Free Performance

35,000¹ Pa HyperForce Motor & Dual Anti-Tangle System

AdaptiLift Chassis 3.0

Conquers High Thresholds² and Effortlessly Tackles Thick Carpets³.

7.98 cm Ultra-Slim Design

Slides Effortlessly Under furniture to Reach Every Low Space.

Brand New RockDock

Smart, High-temperature Refreshing for Spotless Performance.

Available in Two Options

Saros 20 Sonic

with Refill and Drainage System

Learn More

Elevated Clean, Powered by Vibration

VibraRise 5.0

VibraRise 5.0 Mopping System

Vibrate, Extend, Perfect.

VibraRise 5.0

The VibraRise 5.0's extendable mop head presses into edges, unlocking a larger edge-to-corner cleaning area for a thorough clean without scratching walls⁴. Driven by an advanced, independent-motor system, it combines 14N of downward pressure⁵ with 4000 sonic vibrations/min for powerful scrubbing, all while ensuring a quieter and more peaceful clean.

27% Larger⁶

Mop Vibrating Area for Corner

1.75X

Boosted Mopping Pressure⁵

0mm

Along the Edge⁴

4000

Vibrations/min⁷

VibraRise 5.0 Mopping System

Vibrate, Extend, Perfect.

27% Larger⁶

Mop Vibrating Area for Corner

1.75X

Boosted Mopping Pressure⁵

0mm

Along the Edge⁴

4000

Vibrations/min⁷

Extends to Clean Further

The single extendable mop reaches corners better than traditional multi-pad systems and eliminates mopping gaps between pads, ensuring a cleaner edge-to-edge finish.

Auto-Detach. Carpets Protected.

When vacuum-only or carpet-first modes are activated, the mop detaches automatically to prevent moisture transfer, keeping your carpets dry and protected.

Streak-Minimized Cleaning

The VibraRise 5.0 mopping system distributes water evenly across the mop, minimizing streaks and spiral marks. Every pass delivers a smooth, consistent finish—even along edges and corners.

Extends to Clean Further

The single extendable mop reaches corners better than traditional multi-pad systems and eliminates mopping gaps between pads, ensuring a cleaner edge-to-edge finish.

Auto-Detach. Carpets Protected.

When vacuum-only or carpet-first modes are activated, the mop detaches automatically to prevent moisture transfer, keeping your carpets dry and protected.

Streak-Minimized Cleaning

The VibraRise 5.0 mopping system distributes water evenly across the mop, minimizing streaks and spiral marks. Every pass delivers a smooth, consistent finish—even along edges and corners.

Dial In Your Clean

Take full control with independent water and vibration settings in your app for a truly tailored clean.

Stains on hardwood?

Use minimal water to protect floors, while intensifying vibration to tackle the spot.

Greasy kitchen mess?

Blast through tough grime with with ramped up water flow and vibration.

Now you hold the power to flawlessly tackle every cleaning challenge in your home.

35,000 Pa HyperForce Motor

Demand Deep-Cleaning Excellence

An ultra-powerful digital motor engineered for consistent, high-performance cleaning.

35,000 Pa

Max Digital Motor Power¹

Dual Anti-Tangle System

Tangle-Free Cleaning, Guaranteed.

Hair? Gone. The innovative DuoDivide Main Brush and FlexiArm Arc Side Brush are engineered to prevent tangles from strands up to 40 cm long. Enjoy uninterrupted cleaning with a system designed to stay free of hair wrap, cycle after cycle.

DuoDivide Main Brush

Hair Tangling Rate⁸

100%

Hair Removal Rate⁹

FlexiArm Arc Side Brush

Hair Tangling Rate¹⁰

Liftable Brush and Mops

Adjusts Intelligently to Every Scene

Vacuum Only

Mop Mode

Clean Carpet

Mops detached

Main brush lowered

Keeps floors dry while maintaining powerful suction during vacuuming.

Main brush lifted

Prevents main-brush contamination in mop-only mode.

Deeply Clean Carpet First

Usual Cleaning Path

Protects carpets from moisture while maximizing cleaning performance

Mop detached / Chassis lifted / Main brush stabilized

Mop lifted / Main brush stabilized

Vacuum Only

Mops detached

Main brush lowered

Keeps floors dry while maintaining powerful suction during vacuuming.

Mop Mode

Main brush lifted

Prevents main-brush contamination in mop-only mode.

Clean Carpet

① Deeply Clean Carpet First

Mop detached

Chassis lifted

Main brush stabilized

② Usual Cleaning Path

Mop lifted

Main brush stabilized

Protects carpets from moisture while maximizing cleaning performance

The Unbound Flow.

AdaptiLift Chassis 3.0

Climbs, Lifts, and Cleans Like Never Before.

Effortlessly Conquers 8.5 cm Obstacles

4.5 cm+4 cm

Maximum Double-Layer Threshold Crossing²

Engineered to go where others can't. Inspired by previous innovations in mobility, our next-gen AdaptiLift Chassis 3.0 system features a climbing arm that orchestrates a lift-and-climb maneuver over 8.5 cm double-layer thresholds—a significant leap forward. With unwavering confidence, it delivers a seamless, uninterrupted whole-home clean.

Industry-First Dynamic Cleaning for Up to 3 cm Carpets

30% Higher¹²

Dust Pick-Up Rate on Long-Pile Carpets

Experience industry-first¹¹ dynamic chassis elevation with omni-directional wheels. The robot intelligently adjusts its height to maintain optimal suction on carpets up to 3 cm³, ensuring deep, consistent cleaning across varying pile heights—finally delivering true carpet-cleaning performance*.

Main Brush Stabilization Module

When Deep Carpet Cleaning is enabled, the main brush remains in a stable downward position on the second carpet pass, boosting cleaning efficiency compared to its usual floating motion*.

* This function needs to be manually enabled in the Roborock app. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

Prevent Getting Stuck

7.98 cm Ultra-Slim Design with RetractSense Navigation System

Sees and Cleans Where Others Can't¹³

At just 7.98¹⁴ cm tall with a retractable LDS, this ultra-slim robot doesn't just reach hidden spaces—it cleans them with precision. While others go blind under furniture, its RetractSense Navigation System maintains accurate mapping and movement for systematic cleaning, ensuring no dust remains in the tightest spots.

100% Success Rate¹⁵

Cleaning in Spaces ≥7.98 cm High

RetractSense Navigation System

In Open Spaces

Under Furniture

Stays elevated for 360° scanning and precise mapping.

Automatically retracts with a 100° rear view—cleaning tight spaces with accuracy.

FlexiArm Technology

Reaches Toe Kicks. Cleans Every Edge.

Roborock's exclusive FlexiArm Arc Side Brush intelligently extends to clean along walls and corners. Enhanced by a precision algorithm, it precisely targets and sweeps debris from toe-kick areas—ensuring complete coverage across your home's varied floors.

100%

Edge and Corner Sweeping¹⁶

Down to 2 cm

Toe-Kick Area Cleaning¹⁷

The Dock That Thinks, Cares

Brand New RockDock

Independent Mop-Washing System

3-Min

Saves Each Cycle¹⁸

The dock independently cleans detached mop pad while the robot is out vacuuming, so a freshly washed mop is ready the moment the robot returns. Seamless and automatic transitions keep your cleaning schedule uninterrupted.

100°C Hot-Water Mop Washing

Our Brand New RockDock cleans mop pads with up to 100°C near-boiling water¹⁹, blasting away grease, dirt, and residue. Every wash refreshes pads thoroughly, leaving floors cleaner and more hygienic.

Up to 100°C

Hot-Water Mop Washing¹⁹

99.99%

Bacteria Removal Rate²⁰

55°C Warm Air for Full Dust-Path Drying

The dock's 55°C²¹ warm-air system actively dries the dust pathway—including the dust bag and evacuation ducts, reducing mold and odors for a fresher, more hygienic dock.

55°C Warm Air for Mop Drying

Dries the mops and dock base thoroughly with 55°C²¹ of warm air, preventing the growth of mold and unpleasant odors.

100°C Hot Water Dock Self-Cleaning

The dock base stays hygienic thanks to up to 100°C¹⁹ hot water and the self-cleaning module, minimizing the need for manual maintenance.

Intelligent Dirt Detection for Re-Wash & Re-Mop

Dirt levels are continuously monitored during mop washing, adjusting the wash duration and triggering an extra mopping pass for areas with higher dirt accumulation.

Auto Detergent Dispenser

Equipped with an auto detergent dispenser, the dock automatically adds cleaning solution, delivering a deeper, effortless mop clean.

Warm Water Auto-Refilling

Fills the robot's water tank with warm water automatically when needed.

150-min Fast Charging

Fully charges the 6400 mAh battery in just 150 minutes²². Its intelligent system adjusts charging based on the remaining cleaning area, getting your robot back to work faster without waiting for a full charge.

Auto Dust Emptying

Allows for up to 65 days²³ without manual emptying.

Perception That Guides Every Move

Reactive AI 3.0 Obstacle Recognition

Equipped with triple structured light, an RGB camera, and VertiBeam lateral structured light, the robot maps its environment in exceptional detail. It detects obstacles near and far, navigating smoothly and intelligently with minimal blind spots and precise control.

200+

Types of Objects Recognized²⁴

Sees Beyond the Side

Cleans Behind Curtains

The VertiBeam lateral structured light expands the robot’s field of view, detecting slim and low objects along walls and furniture with precision. It reacts instantly to avoid obstacles such as cables or chair legs, ensuring safer and smoother navigation in every corner.

With manual curtain marking in the app, the robot identifies and cleans behind curtains, and soft partitions. Hidden areas are covered automatically—no need to lift, move, or adjust anything, for a more complete and effortless clean.

Sees Beyond the Side

Cleans Behind Curtains

......... .........

Your Privacy, Our Priority

Roborock adheres to strict global data privacy standards, processing all visual data securely on-device to keep your home as private as it is clean.

Roborock APP

RockMind

The Brain Behind Every Clean

Powered by intelligence that understands your home, your habits, and even the small moments you might miss—turning everyday cleaning into something effortless and thoughtfully smart.

Carpet Cleaning

Smart Strategy for Every Carpet

Want to deep clean carpets or skip them entirely? One tap²⁵ is all it takes. Your robot adapts automatically—boosting suction on carpets with the mop lifted, or following precise edge-cleaning paths to avoid rugs and keep them dry. You're in control of every room, every rug, every time.

Roborock SmartPlan 3.0

One Tap and Let the Smart Take Over

Roborock SmartPlan 3.0 automatically recognizes room types, learns your cleaning habits, and selects the optimal cleaning strategy for you—boosting suction when needed, rewashing the mop as required, and lowering power to reduce noise during Do-Not-Disturb periods.

Pet-Friendly Intelligence

Closer to Your Furry Friends

Automatic Pet Recognition

When approaching your pet, the robot automatically pauses its main brush and adjusts its path to avoid startling it.

Pet Snaps

When enabled, your robot automatically takes adorable photos of your pets during cleaning sessions — ready to view, save, and share with just one tap.

Search for the Pet

Keep track of your furry friends as the robot navigates your home. Their locations are marked on the map—no more losing them in a game of hide-and-seek.

Video Call & Cruise

Check in on your pets or home in real time, and remotely guide your robot to any spot for a closer look.

Pet-Friendly Intelligence

Closer to Your Furry Friends

Automatic Pet Recognition

When approaching your pet, the robot automatically pauses its main brush and adjusts its path to avoid startling it.

Pet Snaps

When enabled, your robot automatically takes adorable photos of your pets during cleaning sessions — ready to view, save, and share with just one tap.

Search for the Pet

Keep track of your furry friends as the robot navigates your home. Their locations are marked on the map—no more losing them in a game of hide-and-seek.

Video Call & Cruise

Check in on your pets or home in real time, and remotely guide your robot to any spot for a closer look.

Everyday Features

Cleans Behind Curtains

By manually marking curtains in the app, the robot can identify and clean behind curtains and soft partitions.

Tailored Mopping Vibration & Water Flow

Take full control of water flow and vibration settings in your app for a truly customized clean.

Stain-Target AI Cleaning

The robot intelligently detects different stain types and automatically adjusts its strategy—applying extra cleaning power to heavy soils for a deeper, effortless clean.

Automatic Re-Cleaning for Missed Spots

Returns to areas previously blocked by pets or people, ensuring no spot is left uncleaned.

Built-in Voice Assistant

Say "Hello Rocky" for help. Your robot listens and responds — even without Wi-Fi.

Third-Party Control

Matter Supported. Automate routines and control all your devices from a single platform, with compatibility for Alexa, Siri, and Google Home.

Photo Album

Key Specs

Saros 20 Sonic

Saros 20 Sonic with Refill & Drainage System

Dimensions

Saros 20 Sonic

Robot

350 x 353 x 79.8 mm

Dock

440 x 409 x 470 mm

Saros 20 Sonic with Refill & Drainage System

Robot

350 x 353 x 79.8 mm

Dock

440 x 409 x 300 mm

* Images and videos are for illustration purposes only and may not exactly represent the product. The app interface is subject to change without notice.

1. Based on internal testing of the digital motor under specific conditions. Actual results may vary depending on product configuration and usage conditions.

2. This product is tested to cross thresholds up to 8.5 cm, including a 4.5 cm threshold plus an additional 4 cm track on top for double-layer thresholds, or up to 4.5 cm for single-layer thresholds. Actual results may vary depending on environmental factors.

3. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

4. Based on internal testing carried out by the manufacturer. The mop adopts a Protruding-Fiber Design with elastic support, allowing the mop fibers to reach and clean along edges while preventing scratching the walls. Actual results may vary depending on environmental factors.

5. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors. Boosted mopping pressure result is derived from the comparison with Saros 10.

6. Based on internal testing conducted by the manufacturer, compared with previous Roborock vibrating robot vacuum cleaners. Actual results may vary depending on environmental factors.

7. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

8. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

9. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

10. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

11. This feature is powered by Roborock’s AdaptiLift Chassis—the industry’s first mass-produced liftable chassis system with three-wheel control, launched in Q3 2024. The dynamic carpet-cleaning capability was officially introduced in Q3 2025.

12. Based on Roborock internal testing using Max+ mode. Compared to the performance on the 2cm long-pile carpets of previous Roborock vacuum robots. Actual results may vary according to the home environment.

13. Based on research conducted by Roborock, as of November 2025, the Saros 20 Sonic is the thinnest model among Roborock's vacuum robots.

14. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

15. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

16. Based on internal testing conducted by the manufacturer using side brush for edge and inside-corner sweeping performance. Actual coverage and distance may vary depending on the home environment.

17. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

18. Based on internal testing carried out by the manufacturer. 'Each cycle' refers to the robot’s sweep-then-mop process for a specific area during a cleaning operation. Actual results may vary depending on environmental factors.

19. Based on internal testing carried out by the manufacturer. The water at the clean water dispensers of the dock can be heated up to 100°C (212°F) under standard atmospheric pressure (1 atm, 101.3 kPa) at room temperature. Actual temperatures may vary depending on environmental conditions such as altitude and atmospheric pressure.

20. Based on testing carried out by TÜV Rheinland on Escherichia coli and Staphylococcus aureus under default self-cleaning mode, over 99.99% of bacteria on the mop are effectively removed. Certification ID: 0000087672. Actual results may vary according to the home environment.

21. Based on internal testing carried out by the manufacturer, the air at the base’s outlet during drying can be heated up to 55°C under standard room temperature. Actual temperatures may vary due to environmental factors.

22. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

23. Based on internal testing carried out by the manufacturer. Actual results may vary depending on environmental factors.

24. Based on internal testing carried out by the manufacturer, the robot vacuum can see and bypass objects down to as small as 5 cm wide and 3 cm tall. Recognition accuracy may vary depending on environmental factors.

25. These carpet cleaning settings must be manually enabled and selected in the Roborock app. This feature is applicable to household carpets with pile heights of 3 cm or below, which covers the majority of carpets used in typical homes.

Saros 20 Sonic with Refill & Drainage System

Compact Design

Seamlessly fits in your home environment and saves space with an impressive dock height of just 30 cm.

Auto Water Refill and Drain

Automatically refills clean water and empties dirty water during mop washing, for a seamless hands-free experience.*

*Availability of products with the Refill and Drainage system differs by region and country. Please check your regional Roborock website or consult your local dealer for more details.

Check Your Environment

Space Requirements

Clean Water Inlet

Power Plug

Dirty Water Outlet

More than 100 cm

More than 42 cm

More than 30.5 cm

Place on a Hard and Flat Floor

Strong Wi-Fi Coverage

Avoid Direct Sunlight and Humid Environments

Installation Requirements

Reserve a space of at least: 30.5 cm in height, 42 cm in width, and 100 cm in depth.

The dock should be placed against a wall on a hard and even floor (wood, tile, concrete, etc.). Avoid placing it on soft surfaces (carpet, mat, etc.) or in narrow areas.

Ensure that the location has a strong WiFi signal for an optimal experience with the mobile app.

The height difference at any point on the drainage pipeline from the ground is recommended not to exceed 50cm.

The installation distance for the water refill and outlet pipes is recommended within 6 meters. If not, please contact customer service for consultation.

The water pressure range is 0.1-0.4 MPa. If it exceeds 0.4 MPa, please use a pressure-reducing valve.

Please avoid arranging pipes through doorways or corridors.

Ensure there are no thresholds, tracks, or steps higher than 3.5 cm between the dock's installation site and the cleaning area to avoid the risk of getting stuck or missing cleaning.

Before installation, please disconnect the power supply of the dock. Turn off the main water supply switch, faucet switch, or angle valve switch in the house. Drain pipelines, and ensure they are connected without leakage.

Saros 20 Sonic

Beyond Detail. Beyond Clean.

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Robot

Dock

Robot

Dock

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